TY - JOUR A1 - Lee, J. A1 - Hong, T.-K. T1 - Seismological assessment of human activity levels during the COVID-19 pandemic JO - Solid Earth Discuss. J1 - SED VL - 2020 SP - 1 EP - 23 Y1 - 2020/12/02 PB - Copernicus Publications SN - 1869-9537 UR - https://se.copernicus.org/preprints/se-2020-193/ L1 - https://se.copernicus.org/preprints/se-2020-193/se-2020-193.pdf DO - 10.5194/se-2020-193 ER -